Enhanced E911 Location Information Using Voice Over Internet Protocol (VoIP)

1. A Voice over Internet Protocol (VoIP) gateway server for routing an Emergency Service Routing Key (ESRK) to a Public Safety Answering Point (PSAP) relating to a call from a VoIP device, comprising: a physical VoIP gateway server; a dedicated trunk line between said physical VoIP gateway server and a first selective router associated with a first PSAP; an Internet Protocol (IP) interface between said physical VoIP gateway server and a VoIP switch; and means for egressing an E911 call and ESRK to a specific PSAP responsible for receiving said E911 call from a location of a VoIP device that originated said E911 call.

2. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 1 , wherein: said VoIP server is a local VoIP server.

3. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 1 , wherein: said dedicated trunk line is a Centralized Automatic Message Accounting (GAMA) trunk line.

4. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 1 , wherein: said dedicated trunk line is a Signaling System #7 (SS7) trunk line.

5. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 1 , wherein: said dedicated trunk line is a Feature Group-D (FG-D) trunk line.

6. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 1 , wherein: said IP interface between said physical VoIP gateway server and said VoIP switch is adapted to carry an emergency call and associated ESRK to said physical VoIP gateway server.

7. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 1 , further comprising: a plurality of IP interfaces between said physical VoIP gateway server and a plurality of VoIP switches.

8. A Voice over Internet Protocol (VoIP) gateway server for routing an Emergency Service Routing Key (ESRK) to a Public Safety Answering Point (PSAP) relating to a call from a VoIP device, comprising: a physical VoIP gateway server; a dedicated trunk line between said physical VoIP gateway server and a first selective router associated with a first; an Internet Protocol (IP) interface between said physical VoIP gateway server and a VoIP switch; a VoIP data-to-voice converter to convert an E911 call to analog voice, and means for egressing said analog voice and ESRK to a specific PSAP responsible for receiving said E911 call from a location of a VoIP device that originated said E911 call.

9. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 8 , wherein: said VoIP server is a local VoIP server.

10. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 8 , wherein: said dedicated trunk line is a Centralized Automatic Message Accounting (GAMA) trunk line.

11. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 8 , wherein: said dedicated trunk line is a Signaling System #7 (SS7) trunk line.

12. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 8 , wherein: said dedicated trunk line is a Feature Group-D (FG-D) trunk line.

13. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 8 , wherein: said IP interface between said physical VoIP gateway server and said VoIP switch is adapted to carry an emergency call and associated ESRK to said physical VoIP gateway server.

14. The VoIP gateway server for routing an ESRK to a PSAP relating to a call from a VoIP device according to claim 8 , further comprising: a plurality of IP interfaces between said physical VoIP gateway server and a plurality of VoIP switches.